lily should create its own `lily` repo rather than a `lotus` repo.

[frrist]

Description

Upon intalizing lily the following logs (and actions) are show (performed):

╰─>$ ./visor init --import-snapshot https://fil-chain-snapshots-fallback.s3.amazonaws.com/mainnet/complete_chain_with_finality_stateroots_latest.car
2021-08-24T16:58:30.792-0700    INFO    visor/commands  commands/init.go:57     lotus repo: /home/frrist/.lotus
2021-08-24T16:58:30.792-0700    INFO    repo    repo/fsrepo.go:122      Initializing repo at '/home/frrist/.lotus'

Instead of creating a lotus repo in the home directory, a lily repo should be created.

Acceptance criteria

change the repo file path.

Where to begin

in the daemon somewhere, we could use a default flag value for the --repo flag.